<div class="content-section-flex">
  <button lv-button (click)="open1()">Default Button Async Event</button>
  <button lv-button (click)="open2()">Default Button Async Event (Observe)</button>
  <button lv-button (click)="open3()">Custom Button Async Event</button>
</div>

<ng-template #contentTpl>
  <div>This is modal content...</div>
  <div>This is modal content...</div>
  <div>This is modal content...</div>
  <div>This is modal content...</div>
  <div>This is modal content...</div>
  <div>This is modal content...</div>
  <div>This is modal content...</div>
</ng-template>